<template>
  <view class="cart-container" v-if="cart.length !== 0">
		<!-- 收货地址组件 -->
		<my-address></my-address>
		  
		  
		  <!-- 购物车商品列表标题区域 -->
		<view class="cart-title">
			<!-- 左侧图标 -->
			<uni-icons type="shop" size="18"></uni-icons>
			<!-- 右侧文字 -->
			<text class="cart-titel-text">购物车</text>
		</view>
		
		
		<!-- 商品列表区域 -->
		<uni-swipe-action>
			<block v-for="(goods,i) in cart" :key="i">
			<uni-swipe-action-item :right-options="options" @click="swipeItemClickHandler(goods)">
			  <my-goods :goods="goods" :showRadio='true' :showNum="true" @radio-change='radioChangeHandler' @num-change="numberChangeHandler"></my-goods>
			</uni-swipe-action-item>
			</block>
		</uni-swipe-action>
		
		
		<!-- 使用自定义的结算组件 -->
		<my-settle></my-settle>
  </view>
  
  <!-- 空白购物车的区域-->
  <view class="empty-cair" v-else>
  	<image src="@/static/cart_empty@2x.png" class="empty-img"></image>
	<text class="tip-tex">空空如也~</text>
  </view>
</template>

<script>
  import {mapState,mapMutations} from 'vuex'
  import badgeMix from '@/mixins/tabbar-badge.js'
  export default {
	// 将badge混入到当前的页面使用
	mixins:[badgeMix],
	computed:{
		...mapState('m_cart',['cart'])
	},
    data() {
      return {
        options:[{
			text:'删除',
			style:{
				backgroundColor:'#c00000'
			}
		}]
      };
    },
	methods:{
		...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
		// 监听子组件复选框状态
		radioChangeHandler(e) {
			// 调用store中的方法，更新商品状态
			this.updateGoodsState(e)
		},
		// 监听子组件数量变化的方法
		numberChangeHandler(e) {
			// 更新商品数量
			this.updateGoodsCount(e)
		},
		// 左滑删除事件
		swipeItemClickHandler(goods) {
			this.removeGoodsById(goods.goods_id)
		}
	}
  }
</script>

<style lang="scss">
.cart-title{
	display: flex;
	height: 40px;
	padding-left: 5px;
	border-bottom: 1px solid #efefef;
	align-items: center;
	.cart-titel-text{
		font-size: 14px;
		margin-left: 10px;
	}
}
.cart-container{
	padding-bottom: 50px;
} 

.empty-cair{
	display: flex;
	flex-direction: column;
	align-items: center;
	padding-top:150px ;
	.empty-img{
		width: 90px;
		height: 90px;
	}
	.tip-tex{
		font-size: 12px;
		color: gray;
		margin-top: 15px;
	}
	
	
}
</style>
